DE441651C - Acoustic signal instrument, in which in front of the electromagnetically driven diaphragm, a second plate, which is set into resonance by the sound waves generated by the diaphragm, is arranged after the sound body or bell - Google Patents

Acoustic signal instrument, in which in front of the electromagnetically driven diaphragm, a second plate, which is set into resonance by the sound waves generated by the diaphragm, is arranged after the sound body or bell

Info

Publication number
DE441651C
DE441651C DEW66640D DEW0066640D DE441651C DE 441651 C DE441651 C DE 441651C DE W66640 D DEW66640 D DE W66640D DE W0066640 D DEW0066640 D DE W0066640D DE 441651 C DE441651 C DE 441651C
Authority
DE
Germany
Prior art keywords
diaphragm
bell
sound
acoustic signal
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEW66640D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Westfaelische Metall Industrie KG Hueck and Co
Original Assignee
Westfaelische Metall Industrie KG Hueck and Co
Publication date
Priority to DEW66640D priority Critical patent/DE441651C/en
Application granted granted Critical
Publication of DE441651C publication Critical patent/DE441651C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K9/00—Devices in which sound is produced by vibrating a diaphragm or analogous element, e.g. fog horns, vehicle hooters or buzzers
    • G10K9/18—Details, e.g. bulbs, pumps, pistons, switches or casings
    • G10K9/20—Sounding members

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Description

Akustisches Signalinstrument, bei dem vor der elektromagnetisch angetriebenen Membran nach dem Schallkörper oder Schallbecher hin eine zweite durch die von der Membran erzeugten Tonwellen in Nitschwingung versetzte Platte angeordnet ist. Es sind akustische Signalinstrumente bekannt, bei denen der Ton und seine Klangfarbe dadurch beeinfiußt werden, daß zwischen der elektromagnetisch oder auf andere Weise angetriebenen, am Rand fest eingespannten Membran und dem Schallbecher eine zweite ebenfalls eingespannte Membran eingeschaltet ist, die durch die von der ersten Membran ausgehenden Tonwellen zum Schwingen gebracht wird. Um auch den von der ersten Membran ausgehenden Tonwellen den Durchtritt zu dem Schallbecher zu gestatten, sind bei denbekanntenAusführungeninderMernbran am äußeren Rand mehrere Löcher oder sternförmige Einschnitte vorgesehen. Der mit diesen Instrumenten erzeugte schnarrende oder flatternde Ton ist jedoch für manche Zwecke nicht brauchbar.Acoustic signal instrument, in which in front of the electromagnetically driven Membrane after the sound body or bell, a second through that of the Diaphragm generated sound waves is arranged in a nit-vibrated plate. It acoustic signal instruments are known in which the tone and its timbre be influenced by the fact that between the electromagnetically or in some other way driven diaphragm firmly clamped at the edge and the bell a second one also clamped diaphragm is turned on, which is passed through by the first diaphragm outgoing sound waves is made to vibrate. To the one from the first membrane too to allow outgoing sound waves to pass through to the bell are at the known designs in the core at the outer edge several holes or star-shaped Incisions provided. The rattling or fluttering produced with these instruments However, clay is useless for some purposes.

Um einen ruhigen Ton mit schöner Klangfarbe zu erzielen, ist die zweite am. Rand fest eingespannte Membran erfindungsgemäß mit einer mittleren Öffnung versehen und an dieser Stelle nach dem Schallbecher hin trichterförmig aufgehogen. Dadurch wird bewirkt, daß sämtliche, von der ersten Membran ausgehenden Tonwellen durch diese trichterförmige Öffnung streichen und die zweite Membran zum Mitschwingen bringen. Je nach der Gestaltung des Trichters wird dem von der ersten Membran erzeugten Ton durch die zweite Membran eine besondere Klangfarbe gegeben. Auf der Zeichnung ist ein derartiges Signalinstrument im Schnitt dargestellt.To get a calm tone with nice timbre is the second Provided according to the invention with a central opening that is firmly clamped at the edge and at this point suspended in the shape of a funnel towards the bell. Through this causes all sound waves emanating from the first membrane to pass through Stroke this funnel-shaped opening and the second membrane to vibrate bring. Depending on the design of the funnel, that is generated by the first membrane Sound is given a special timbre by the second membrane. On the drawing such a signal instrument is shown in section.

Die auf beliebige Weise, z. B. auf elektromagnetischem Wege, in Schwingungen zu versetzende erste Membran a ist in bekannter Weise zwischen dem Rohr b und einem Zwischenring des Schallbechers. c eingeklemmt. In gleicher Weise ist zwischen dem Zwischenring und dem Schallbecher c die zweite Membran ,d.' eingeklemmt, die mit der trichterartig ausgebildeten Öffnung e versehen ist, durch die die von der ersten Membran a erzeugten Schallwellen hindurchstreichen.The in any way, z. B. electromagnetically, in vibrations to be displaced first membrane a is in a known manner between the tube b and a Intermediate ring of the bell. c pinched. In the same way is between the Intermediate ring and the bell c the second diaphragm, d. ' pinched that with the funnel-like opening e is provided through which the first Stroke through membrane a generated sound waves.

Claims (1)

PATENT TANSP1tUCH: Akustisches Signalinstrument, bei dem vor der elektromagnetisch angetriebenen Membran nach dem Schalllcörper oder Schallbecher hin eine zweite durch die von der Membran erzeugten Tonwellen in Mitschwingung versetzte Platte angeordnet ist, .dadurch gekennzeichnet, daß diese ebenfalls am Rande fest .eingespannte Platte (d) derart trichterförmig nach dem Schallbecher (e) hin gestaltet ist, daß sämtliche, von der schwingenden Membran (a) ausgehenden Luftwellen nur durch das Innere dieses Trichters (d) streichen können und ihn je nach seiner Gestaltung in Schwingungen mit verschiedener Klangfarbe versetzen. PATENT TANSP1tUCH: Acoustic signal instrument in which a second plate, which is set in oscillation by the sound waves generated by the membrane, is arranged in front of the electromagnetically driven membrane after the sound body or bell ) is designed funnel-shaped towards the bell (e) so that all air waves emanating from the vibrating membrane (a) can only pass through the inside of this funnel (d) and, depending on its design, cause it to vibrate with different timbres.
DEW66640D Acoustic signal instrument, in which in front of the electromagnetically driven diaphragm, a second plate, which is set into resonance by the sound waves generated by the diaphragm, is arranged after the sound body or bell Expired DE441651C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEW66640D DE441651C (en) Acoustic signal instrument, in which in front of the electromagnetically driven diaphragm, a second plate, which is set into resonance by the sound waves generated by the diaphragm, is arranged after the sound body or bell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEW66640D DE441651C (en) Acoustic signal instrument, in which in front of the electromagnetically driven diaphragm, a second plate, which is set into resonance by the sound waves generated by the diaphragm, is arranged after the sound body or bell

Publications (1)

Publication Number Publication Date
DE441651C true DE441651C (en) 1927-03-09

Family

ID=7607684

Family Applications (1)

Application Number Title Priority Date Filing Date
DEW66640D Expired DE441651C (en) Acoustic signal instrument, in which in front of the electromagnetically driven diaphragm, a second plate, which is set into resonance by the sound waves generated by the diaphragm, is arranged after the sound body or bell

Country Status (1)

Country Link
DE (1) DE441651C (en)

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